Sash-lock.



'N0. 685,700. Patented Det. 29, I90I.

F. B. TDWNSEND.

SASH LUCK.

(Application led Ont. 6, 1900.)

(No Model.)

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UNITED, l STATES PATENT OFFICE.

FRANK BOGART TOVNSEND, OF PENN YAN, NEW YORK, ASSIGNOR TO THE ROCHESTER SASH LOCK COMPANY, OF ROCHESTER, NEl/V YORK.

SASH-LOCK.

SPECIFICATION forming part of Letters Patent No. 685,700, dated October 29, 1901.

Application led October 6, 1900. Serial No. 32,294. '-(No model.)

To @Z whom it' may concern.'

Be it known that I, FRANK BOGART TOWN- SEND, a citizen of the United States, residing at Penn Yan, in the county of Yates and State of New York, have invented a new and useful Sash-Lock, of which the following is a specication.

This invention relates to sash-locks, and more especially to that type of locks associated With a sliding window-sash and coperating with a slide-rod or equivalent element to provide for securely and effectively locking the sash against movement in either direction at any point of elevation.

To this end the invention contemplates an improved type of sash-lock capable of application to either an upper or lower sash and so constructed that the entire lock may be seated flush Within the stile or other part of the sash to which it may be applied.

A further object of the invention is to provide an improvement in sash-locks of that type employing finger-controlled clutch-levers in which the levers shall be housed throughout their entire length and will have no projection beyond the ends of the casing with which they are associated, so as to obviate the projection of the gripping ends of the levers beyond the sash-stile in front of the window pane or glass, as is common in some types of locks-such, for instance, as in the sash-lock shown in my formerpatent, No. 561,927.

Another object of the invention is to provide a novel mounting and Vrelative positioning of parts whereby the same shall b'e disposed in the most eective positions, while at the same tirnebeing capable of ready'removal and replacing, and the invention also has in View a novel form and mounting of holdingcatch cooperating with the clutch-levers to hold themin their'inoperative positions When it is desired to permit a free up-and-down movement of the sash to which the lock is applied.

. With these and many other objects in view, which will more readily appear as the nature of the invention isbetter understood,the same consists inthe novel construction, combination, and arrangement of parts hereinafter more fully desoribed,i1lustrated,and claimed.

While the essential features of the invention are necessarily susceptible to some modiiication without departing from the spirit or scope thereof, still the preferred embodiment of the improvements is shown in the accompanying drawings, in Which- Figure lis a perspective View of an improved sash-lock constructed in accordance with this invention shown applied to the 6o stile of a Window-sash; Fig. 2 is a plan view of the lock with the cover-plate removed, showing in full and dotted lines the active and inactive positions of the finger-controlled clutch-levers. the line 3 3 of Fig. 2.l Fig. 4 isa detail in perspective of the casing with all of the'parts removed therefrom. Fig. 5 is a detail in-per==-.'l spective of the holding-catch which coperates with the clutch-levers for securin g them n 7o in an inactive position. 'f

Like numerals of reference designate co1`- responding-parts in the several figures of the', drawings.

In carrying out the invention thevlworking parts of the lock are associated with a casing l, which may be eithercast or stamped from i sheet metal at tho option ofthe manufacturer. This casing ispreferably ot' an approximately rectangular form and is constructed withfa 8o A bonrportion 2, usually of a substantially rec-` tangular shape, and beyond said box portion 2, at one side thereof, Witha housing extenA sion3, which extension coperates'with the box portion 2 of the casing to provide a com- 85v n plete inclosiug case' or housing for the ngercontrolled clutch-levers to be presently referred to, thereby distinguishing the present invention from those structures in which the finger-engaged ends of the clutch-levers'are'go located outside of and wholly exterior to the casingfwhich accommodates theworking parts of the lock. The said housing extension 3, projected from one end of ,the box portion 2 of the casing, ispreferably of an oblong form, being of a greater length than thewidth of thecasing and, as shown in the drawings, is

of substantially elliptical shape, with the end lobes 4 thereof projecting beyondthe adjacent sides of the casing. The entire casing Ico is open at one side, which is necessarily the front side, on account of the position in which Fig. 3 is a sectional View on 65 closed in my aforesaid patent.

the lock is applied for use, and the said oblong housingextension 3 is designed to be left entirely uncovered or open, while the open side of the box portion 2 of the casing is adapted to be covered bythe cover or face plate 5, secured on the retaining-lugs 6 and 7, projecting, respectively, from one end of the casing and the outer end of the post 8 offset from the base or closed side of the casing contiguous to the housing extension 3 thereof, said retaining-lugs G and 7 being upset in the usual manner after the cover or face plate is in position to provide for securing the same over the box portion of the casing.

In the present invention the cover or face plate 5 is provided at opposite side edges thereof with the offset perforated securingears 9, projectingr beyond the plane of the adjacent sides of the casing and adapted to re-v ceive suitable fasteners 10, passing into the stile 11 of the windowsash to provide forholding the lock firmly in place. At this point it is to be observed that in applying the lock to the stile ll or other point on the window-sash the latter is formed with a mortise 12 of a depth equaling the depth of the casing 1 and conforming in shape thereto in order that the entire casing, includingitsoblonghousingextension 3, maybe fitted fiush Within the sashstle, so that no part of the lock will project beyond the face of the sash a sufficient distance to interfere with the upper and lower sashes freely passing each other.

The box portion 2 of the casing l is provided in diametrically opposite sides thereof with the vertically-aimed rod-openings 13, adapted to loosely receive therein the sliderod 14, arranged at the inner side of the window-frame 15 and adapted to lie in a groove 16, formed in the edge of the sash-stile for the reception thereof, said arrangement of the slide-rod being substantially the same as dis- In addition to the diametricallyopposite rod-openings 13 the casing l is provided, within the box pol tion 2 thereof at one side of the plane of said openings, with a transverse fulcrum bar or web 17, which is preferably formed integrally with the body of the casing, and is provided with a pair of spaced bearing-slots 18, having rounded Contact edges 19 and adapted to receive therein the intermediate portions of the pivotal finger-controlled clutch-levers 20, which are housed throughout their lengths in the box portion 2 and housing extension 3 of the casing, said levers having no projection Whatever at their ends beyond the end portions of the casing, as may be plainly seen from Figs. 1, 2, and 3 of thedrawings. The transverse fulcrum-bar 17, through the medium of the bearing-slots 1S thereof, constitutes a fulcrum or pivotal support for the levers 20, which are loosely arranged Within said slots, being held in operative positions therein through the medium of the cover or face plate 5, previously referred to. The terminals of the clutch-levers Within the box portion 2 of the casing are providedwith engaging ends or ears 21, having perforations 22, receiving the slide-rod 14 and adapted to have a clutching engagement therewith, said levers when held at an angle being arranged to carry their clutch-openings 22 out of alinelnent with the axis of the rod 14, thereby providing the clutch engagement referred to. The ends of the levers opposite their engaging ends or ears 2l are formed With fingergrips 23, consisting of offset fianges or plates Working Within the housing extension 8 of the easing and having a slight lateral projection therefrom to permit of ready gripping between the fingers of the hand to provide for oscillating the said levers upon their pivotal supports in the manipulation thereof, as will be readily understood. To insure the normal separation of the gripping ends ofthe levers and the consequent clutching engagement of the ends or ears 21 with the slide-rod,

a coiled pressure-spring 24 is interposed between said levers and one side of the fulcrumbar 17, said spring being housed and confined within the space between the said fulcrulnbar and the offset supporting-post 18 of the casing, thereby being held against displacement as long as the cover or face plate 5 is in position.

In the ordinary use of the \vindo\vsasl1- that is, to permit of the same being freely raised or lowered-it is desirable to hold the finger-controlled clutch-levers in-an inactive position; but in the present invention this is accomplished through the medium of a holdingeatch 25 for the said levers. The construction and mount-ing of this holding-catch are simple and effective. The said catch is supported upon the lug 7 between the same and tho inner side of the cover or face plate 5, the said catch essentially consisting of a slidable fastening-plate 26, provided at one edge with an outturned finger-flange 27, offset laterally from the casing beyond one edge of the cover or face plate 5, so as to he conveniently exposed for engagement by the fingers to provide for drawing the plate into locking engagement with the clutch-levers in the manner tobe presently explained. The said sliding fastening-plate 26 is also provided at an intermediate point between its ends with a longitudinally-disposed guideslot 28, which loosely engages over the rea taininglug 7 at the outer end of the supporte ing-post 8, said slot and lug therefor serving to hold the plate to reciprocation in a fixed plane, thus insuring its positive engagement with and disengagement from the clutchlevers. i

At opposite sides of the plane of its finger fiange and slot the fastening-plate 26 is provided in one edge thereof with the oppositely located locking-notches 29, which are adapted to be carried into engagement with the contiguous edges of the offset portions of the lingergrips 23, which play Within the housing extension 3 of the casing, when said fin-4 TOO IIO

ger-grips are drawn toward each other to provide for releasing their engaging ears from clutching engagement with the sliding rod 14. It will be observed that when the finger-grips are thus moved together to carry vthe clutchlevors to inactive positions with reference to the sliderod lli it is only necessary to draw the holding-catch 25 out from beneath the cover-plate,so as to carry the notches 29 thereof into engagement with said finger-grips,thus positively holding the clutch-levers in inactive positions, and when it is desired to release the levers, so that they'can become active, the holding-catch is slid back beneath the cover or face plate, whereupon the spring 24 separates the clutch-levers into their inclined active positions.

From the foregoing it is thought that the construction, operation, and many advantages of the herein-described sash-lock will be readily apparent to those familiar with the art without further description, and it will be understood that various changes in the form, proportion, and minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is

l. In a sash-lock, the combination with t-he slide-rod, of a casing receiving the slide-rod therethrough, and a pair of finger-controlled clutch-levers, botharranged longitudinally within the casing and housed throughout their entire length therein, said clutch-levers having terminal finger-grips exposed from one side of the casing contiguous to one endv of the latter, substantially as set forth.

2. In a sash-lock, the combinationwith the slide-rod, of a casing provided with a covered box portion having oppositely-arrauged rodopenings, and a housing extension projected beyond one end of said box portion, the casing being further provided with an interior transverse fulcrum-bar having bearing-slots, and -an offset supporting-post spaced from said fulcrum-bar, a pair of clutch-levers loosely and pivotally mounted within the bearing-slots of the fulcrum-bar and having perforated clutch ends cooperating with the slide-rod, and at their opposite ends provided with iinger-grips disposed within the said ing with said post, a pair of clutch-levers,

and a holding-catch slidably supported upon the said post beneath the cover-plate and having locking means coperating with both clutch-levers, substantially as set forth.

5. In a sash-lock, the casing having an offset supporting-post, a pair of similar clutchlevers mounted within the casing and having finger-gri p projections at one end, and a holding-catch consisting of a fasteningplate slidably mounted upon said supportingpost beneath the cover of the casing, and provided with an offstanding finger-flangetand at op-v posite sides of the plane of said Iiange with locking-notches adapted to engage with said v finger-grip projections of the lever, substan tially as set forth.

6. In a sash-lock, the combination with the slide-rod, of the casing, provided with an in*` i terior transverse fulcrum-bar having bear--A ing-slots, an offset supporting-post spaced from the said fulcrum-bar, a pair of clutch l levers loosely and pivotally mounted within the bearing-slots of the fulcrum-bar and'havv ing clutch ends coperating with the sliderod, and at their opposite ends provided with finger-grips exposed outside of the casing,

`a pressure-spring interposed between the clutchlevers and held confined in the space.` y

between the fulcrum-bar and said post, and

a cover or face plate cooperating with the ful-' `crum-bar, post Aand the casing to hold the spring from displacement.

In testimony that I claim the foregoing asmy own I have hereto afiixed my signature in the presence'of two witnesses.

4FRANK BoGAR'r TowNsEND.

Witnesses:

EDWARD D. Ross, FRED H. LYNN.

IOO 

